Self-closing basin-cock.



PATENTED JAN. 7, 1908.

E. G. WATROUS.

SELF CLOSING BASIN COOK.

APPLICATION FILED JAN. 13, 1903.

Ill/111111,,

' I I/ l EARL G. WATROUS, or Linn \no. ILLINOIS.

SELF-CLOSING B ASIBLCOCK.

Specification of Letters Patent.

Patented Jan. '7, 1908.

Application tiled January 13, 19 3. Serial No. 138,843.

To all ullo'm it may concern.-

Be it known that l, EARL G. Warrzous, a citizen of the United States, residing at Chicago, in the State of Illinois, have invented a certain new and useful Self-Closing Basin- Cock, of which the following is a description, reference being had to the accompanying drawing, forming part of this specification.

My invention has for its object the production of a simple and ellicient self-closing basin cock of economical construction, and which shall be as free as possible from the. shocks or jars or hammering to which de- Vices of this character are oftentimes subjected by the pressure of the water at the sudden closing of the valve.

In the accompanying drawing, Figure 1 is a verl ieal section of my improved basin cock in the plane of the discharge spout; Fig. 2 a vertical section thereof at right angles to that in Fig. 1, looking toward the left in the latter figure; Fig. 3 a horizontal cross-section approximately on the line 3-3 of Figs. 1' and 2; and Fig. 4 a sectional detail showing a modification in the construction.

The same letters of reference are used to indicate corresponding parts in the several views.

The upper portion 1 of the cock body is provided with the water chamber 2 and the spring chamber 3, the latter of which is closed at its top by the screw cap 4 which is provided upon its interior with the usual -douhle cams 5, 6, Fig. 1, to cooperate wlth the double cams 7, 8, Fig. 2, formed upon the stem 9 of the handle or turning piece 10, as usual. T he spring chamber 3 contains the coiled spring 11, which bears at its upper end upon the nut 12 screwed upon the upper end of the valve stem 13, the upper end of said stem fitting in a recess in the lower end of the handle stem 9, so that when the handle is turned and forced downward by the cams 1t depresses the valve stem to open the valve,

as usual.

The water chamber within the body .1 is provided with a horizontal diaphragm or defiector 14, forming above the latter a supple mental chamber 15. The water rushing upward through the bottom of the chamher 2 when the valve is open, as hereinafter described, is deflected by the diaphragm l4 and directed outward to the spout 16, which produces a sort of suction at the outer or lefthand end of chamber 15, whereby any water which passes upward around the valve stem is drawn outward into the spout 16 and prevented from passing into the spring chamber 3, thereby obviating the necessity for any stuffing box.

The lower end of the upper portion 1 of the cock body is screwed into the upper end of the base portion 17, which latter is provided with a central cylindrical chamber 18, surrounded by an annular chamber 19, into which opens the upper end of the supply duct 20. The chamber 18 is formed in a sort of integral cup depending into the large chamber 19 which surrounds it, and is entirely closed at its bottom and sides except for a port 21 opening through it into the upper end of the annular chamber 19 at one side, as seen in Figs. 1 and 3. This port communicates with the upper end of a vertical passage 22 formed by two vertical partitions 23, 24, Fig. 3, and opening at its lower end into the space beneath the central chamber 18. There is therefore no escape for the water admitted to the annular chamber 19 from the inlet duct 20 except unvard through the passage 22 and thence t irough the port 21 to the inte- I rior of chamber 18.

The port 21 is controlled by a valve 25 secured to the lower end of the valve stem 13 and carrying the main valve 26, which latter consists of a Fuller ball confined upon the valve stem between the supplemental valve 25 and an annular collar 27 formed upon the valve stem 13. The water chamber 2 in the cock body 1 communicates with the chamber 18 below it by a passage 28 sufliciently larger than the valve stem 13 to permit free passage of the water when the valve is open, and the valve 26 seats against the wall surrounding the lower end of this ('cntrnl passage 28. Ports 29 and Jill extending vertical) through the supplemental valve 35 permit l'ree communication between the upper and lower portions of chamber 18 at opposite sides of said valve.

The operation is as follows: When the handle 10 is turned in either direction from normal position the valve stem is depressed against the resistance of spring 11, and the valve 26 unseated. As the downward movement of the valve stem continues, under the further turning of the handle, the supplemental valve 25 gradualy uncovers the port 21 and permits the water which is under pressure in the chamber 19 and passage 22 and inlet duct 20 to pass through the port 21 into the upper end of chamber 18, and thence up through the passage 28 into the chamber 2, and thence out through the spout 16. Upon the release of the handle 10 and upward movement of the valve stem the valve 25 graduallyfcloses the port 21 before the valve 26 reaclfes its seat, which tends to prevent the shock or jar which would be caused by the sudden closing of the valve 26 in the absence of valve 25. Further than this, as the valve 25 gradually closes the port 21 the pressure of water at the port 21 increases (the pressure being least when the port is wide open and the water escaping most freely), and exerts a strong lateral pressure upon the valve 25, forcing it against the opposite side of chamber 18 and producing a friction between the valve and the wall of the chamber which tends to retard the closing movement of the valve. The ort 21 is therefore closed some what gradua ly, which still further tends to lessen the tendency of the water under pressure to jar the structure. In addition to this, the upper portion of the annular chamber 19 surrounding the central chamber 18 constitutes'an air chamber, which is never filled with water, and which always presents a cushion of air to take up the shock produced by the cutting off of the escape of water at the closing of the valve. \Vhen the valve is in closed position the water admitted to the chamber 19 from theduct 20 willrise in said chamber until the air in the upper portion of the chamber is compressed to a degree su'lllcient'to counterbalance the pressure of the Water. water permitted to escape freely upward through the valve body, the water pressure within the chamber 19 will be reduced,

- whereupon the air in the upper portion of heretofore common for this purpose, and correspondingly simplifies and reduces the cost of valves of this character.

It will be understood that the port 21 has no communication with the air space in the upper part of the annular chamber 19, above described, being cut oil' therefrom by the vertical partitions 23 and 24 which inclose the passage 22 leading upward to the port 2 1.. It will also be understood that the sup lemental valve 25 'does not, or need not, 0 ose the port 21 so tightly as to prevent leakage of water into the chamber 18 during the time the valve is closed, so that ordinarily the chamber 18 will be filled with Water under \Yhen the valve is opened and the pressure, both above and below the supplemental valve 25, the ports 29 and 30 through the latter serving to balance it under such pressure.

Under the modified construction shown in 1* ig. 4, the chamber 18 is formed in a sepa- -rate piece from the base portion of the cock body, instead of integrally therewith, and screwed into the upper portion of the latter. This modification in construction does not affect the operation which has been described, but facilitates the manufacture of this portion of the valve.

Having thus fully described my invention, 1 claim:

1. In a self-closing basin cook, a main chamber provided with an inlet port and an outlet port and through which the water must pass from the supply pipe to the discharge spout, a main valve carried by the valve stem within said chamber and controlling the outlet port therefrom, a supplemental chamber arranged within and concentric of the main chamber, and a supplemental valve also carried by the valve stem to move in unison with the main valve and arranged within said supplemental chamber outlet port, and through :which the water must pass from the supply pipe to the discharge spout, a main valve carried by the valve stem within said chamber and control ling the outlet port therefrom, a supplemental chamber and a supplemental valve also carried by the valve stem within said latter chamber and controlling the inlet. port thereto, said main valve opening in advance of the supplemental valve at the de ression of the valve stem, and said supp emental valve closing in advance of the .main valve at the return upward movement of the valve. stem; substantially as described.

3. In a self-closing basin cook, a cylindrical chamber provided with an inlet port and an outlet port, and through which the water must pass from the supply pipe to the discharge spout, in combination with a main valve carried by the valve stem within said chamber and controlling the outlet port therefrom, and a su plemental cylindrical valve also carried by the valve stem and controlling the inlet port to said chamber, and a supplemental chamber in which the supplemental valve operates; substantially as de scribed.

4. In a self-closing basin cock, a cylindrical chamber provided with an inlet port and an outlet port, and throu 11 which the water must pass from the supp y pipe to the chamber provided with an inlet port and an discharge spout, in combination with a main valve carried by the valve stem within said chamber and controlling the outlet port therefrom, a sup lemental cylindrical valve also carried by tie valve stem within said chamber and fitting the walls thereof and controlling the inlet port to said chamber, and a cylindrical chamber which is arranged within the main chamber and in which the cylindrical valve operates, said main valve opening in advance of said supplemental valve at the depression of the valve stem and said supplemental valve closing in advance of the main valve at the return upward movement of the valve stem; substantially as described.

5. ln a self-closing basin cock the combination, with the cock body 1 containing the chamber, 2, of the body 17 containing the cylindrical chamber 18 surrounded by the annular chamber 19 and communicating with the chamber 2 by the passage 28 and with the bottom of the chamber 19 by the port 21 and passage 22; in combination with the valve stem 13, the main valve 26 carried thereby within the chamber 18 and controlling the passage 28, and the supplemental valve 25 also carried by the valve stem 13 within the chamber 18 and controlling the port 21; substantially as described.

6. A self-closing basin cock, having the body 1 containing the deflector 14, separating its interior into the chambers 2 and 15, body 17 containing the central chamber 18 and surrounding chamber 19, said chamber 18 communicating with the chamber 2 by the passage 28 and with the bottom of the chamber 19 by the port 21 and passage 22, in combination with the valve stem 13 passing through the deflector 14 and passage 28 into the chamber 18, the main valve 26 carried by said valve stem within the chamber 18 and controlling the passage 28, and the supplemental valve 25 also carried by the valve stem within the chamber 18 and controlling the inletport 21; substantially as described.

7, A self-closing basin cock having an intermediate chamber through which the water must pass from the supply pi e to the discharge spout, such chamber Ewing cut off lrom communication with the water sup ly when the cock is closed, and a piston valve movable in such chamber and controlling the passage of water therethrough, said piston valve having a transverse passage communi eating between its opposite sides the lower portion of said chamber being surrounded by the water supply passage and by a cushioning chamber; substantially as described.

8. A sell-closing basin cock having an intermediate chamber through which the water must pass from the supply pipe to the discharge spout, an annular cushioning chamber partially surrounding said intermediate chamber, a passage 22 formed at one side of and having communication with the intermediate chambcr through a port 21, in combination with a main valve controlling the outlet from the said intermediate chamber, and a supplemental valve arranged within the intermediatrchamber and controlling the inlet therein at the said port 21; substantially as described.

9. In a self-closing basin cock, a valve stem carrying a main valve and a supplemental valve movable in unison in all movements of such stem, said supplemental valve governing the flow of water to the main valve and a chamber in which the supplemental valve operates and which is surrounded by a cushioning space and the main water passage; substantially as described.

10. In a self-closing basin cock, a valve stem carrying a main valve and a supplemental valve movable in unison in all movements of the stem,said supplemental valve movable in a chamber and provided with means of communication between its opposite sides, said supplemental valve governmg the flow of water to the main valve substantially as described.

11. In a self-closin basin cock, a main chamber provided with an inlet ort and an outlet port, a su plemental c amber a r ranged within ant concentric of the mam chamber, substantially radial partltions 23, 24 between said chambers to form an inlet passage 22 and a cushioning space 19 surrounding said supplemental chamber, said last-named chamber having an inlet port 21 communicating with said outlet port, and a valve movable within said supplemental chamber and governing said port 21; substantially as described.

EARL G. WATROUS.

Witnesses:

S. E. HIBBEN, Louis B. ERWIN. 

